- the fluid contained within the amniotic cavity. It surrounds the growing fetus, protecting it from external pressure. The fluid is initially secreted from the amnion and is later supplemented by urine from the fetal kidneys. Some of the fluid is swallowed by the fetus and absorbed through its intestine. The volume of amniotic fluid varies according to the stage of gestation: approximate normal values are 500 ml at 18 weeks, rising to a maximum of 800 ml at 34 weeks and falling to 600 ml at term.
The new mediacal dictionary. 2014.
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Amniotic fluid — or liquor amnii is the nourishing and protecting liquid contained by the amnion of a pregnant woman. The amnion grows and begins to fill, mainly with water, around two weeks after fertilization. After a further 10 weeks the liquid contains… … Wikipedia
amniotic fluid — ► NOUN ▪ the fluid surrounding a fetus within the amnion … English terms dictionary
Amniotic fluid — The fluid bathing the fetus and serving as a shock absorber. * * * amniotic fluid n the serous fluid in which the embryo and fetus is suspended within the amnion * * * the fluid contained within the amniotic cavity. It surrounds the growing fetus … Medical dictionary
amniotic fluid — noun the serous fluid in which the embryo is suspended inside the amnion before a woman gives birth her waters break • Syn: ↑amnionic fluid, ↑waters • Hypernyms: ↑liquid body substance, ↑bodily fluid, ↑body fluid, ↑ … Useful english dictionary
amniotic fluid — Liquid contents of the amniotic sac of higher vertebrates, containing foetal, but not maternal cells … Glossary of Biotechnology
amniotic fluid — noun Date: circa 1855 the serous fluid in which the embryo or fetus is suspended within the amnion … New Collegiate Dictionary
amniotic fluid — Anat., Zool. the watery fluid in the amnion, in which the embryo is suspended. * * * … Universalium
amniotic fluid — noun In placental mammals, a fluid contained within the amnion membrane that surrounds a developing embryo or fetus … Wiktionary
amniotic fluid — noun the fluid surrounding a fetus within the amnion … English new terms dictionary
amniotic fluid — UK [ˌæmnɪɒtɪk ˈfluːɪd] / US [ˌæmnɪɑtɪk ˈfluɪd] noun [uncountable] biology the liquid that a baby lives in inside its mother s womb … English dictionary